34results about How to "Play an anti-seepage role" patented technology

Dam concrete for hydraulic and hydro-power engineering is a porous material. When a dam stores water, the concrete of the dam body has the seepage phenomenon easily under the action of pressure of heading-up water level. A method for preventing the seepage of the dam comprises that: the whole upstream concrete surface of the dam is treated by a plurality of working procedures, so that the surface defects of the dam are fully exposed; and a layer of cementitious capillary crystalline waterproofing material (shown as the attached drawing 2 in the abstract) covers on the concrete surface by a brushing or spraying process, and active molecules in the material transmit, fill and generate hydration, so that the material is fully combined with the concrete into a whole, and the anti-seepage effect of the material is obviously improved. Engineering application proves that the process has obviously improved anti-seepage effect of the dam in hydraulic engineering by using the cementitious capillary crystalline waterproofing material, and the cementitious material is fully and effectively combined and absorbed by the surface of the dam, so the anti-seepage, pressure resistance and other performance of the concrete are obviously improved.

The invention discloses a replacement processing structure and method for a water burst channel of an underground cavern. The processing structure comprises a grit chamber formed in a rock mass in thewater coming direction of a karst pipeline through expanding excavation, an artificial culvert is arranged behind the grit chamber, and the artificial culvert is communicated with a pipeline in the drainage direction; the karst pipeline is communicated with a drainage ditch in a underground cavern space, and a controllable common drainage system is formed; a connecting channel is formed between the artificial culvert and the drainage ditch, and a bidirectional water quantity control valve is arranged at a channel opening of the connecting channel. After a high-pressure large-flow water burstof the underground cavern is treated through the technical scheme, an original channel is locally changed by the water burst, and the water burst is discharged out of the culvert through the artificial culvert; an anti-seepage consolidation ring around a water burst point bears external water pressure generated by increase of the underground water level and achieves an anti-seepage function; a radial drainage hole is used for pressure relief and drainage guide, and the dryness and stability of the cavern can be guaranteed. The problem of high-pressure large-flow water burst of the undergroundcavern is solved in a short construction period and at low investment.

The invention discloses a water-based chloroprene rubber adhesive, which is prepared from the following components by mass: 45-80 parts of neoprene latex, 15-40 parts of a styrene-acrylic emulsion, 4-15 parts of a tackifying emulsion, 0.2-2 parts of a pH regulator, 0.1-1 part of a slagging inhibitor and 0.1-0.5 part of a thickening agent. The invention further discloses a preparation method of theroll-coating non-slagging water-based chloroprene rubber adhesive. Compared with the prior art, the invention has the following beneficial effects that: (1) the pH regulator is added, so that the blending stability of the neoprene latex and the styrene-acrylic emulsion can be improved, hydroxyl in the latex can be promoted to crosslink to form a reticular structure, the initial adhesion of the adhesive can be improved, the drying speed can be increased, and an anti-seepage effect can be achieved; and 2) the slagging inhibitor polyborate is added into the formula, so that the mechanical stability of the water-based chloroprene rubber adhesive can be improved by resisting the collision of emulsion particles under a mechanical action, and roll-coating slagging is inhibited.

The invention relates to a road surface structure. The road surface structure comprises a road surface bed course, a road surface foundation course and a road-surface surface course, wherein the roadsurface bed course comprises a nickel ore slag layer, a clay layer and a seepage-proof layer; the inner surface of the clay layer is clung to the outer surface of the nickel ore slag layer; the innersurface of the seepage-proof layer is clung to the outer surface of the clay layer; the outer surface of the bottom of the road-surface surface course is clung to the outer surface of the top of the seepage-proof layer; the outer surface of the top of the road surface bed course is clung to the outer surface of the bottom of the seepage-proof layer; water of the outer part passes through the seepage-proof layer and the clay layer in sequence and can enter the nickel ore slag layer; the clay layer and the seepage-proof layer have a dual protection effect, so that toxic metallic elements in thenickel ore slag layer can be effectively prevented from seeping into underground water. Furthermore, the invention further provides a construction method of the road surface structure; the method comprises the following steps: paving the road surface bed course, and paving the road surface foundation course composed of the seepage-proof layer, the clay layer and the nickel ore slag layer; finally,paving the road-surface surface course to finish construction of the road surface structure.

The invention discloses a modified mixed dam applicable to tailings ponds. The dam comprises a dam body, an upstream face impermeable layer, an impermeable tooth groove, a drainage piled rock prism body, an upstream face drainage layer, an upstream face inverted filter layer, an inverted filter tooth groove, a dam outer slope impermeable layer, a dam lower inverted filter layer, a dam lower drainage layer, a drainage pipe, a seepage collection pipe, a dam body and mountain contact surface impermeable layer, and a dam body and mountain contact surface drainage layer, wherein the upstream face impermeable layer is positioned among the dam body, the drainage piled rock prism body and the upstream face drainage layer; the upstream face drainage layer and the drainage piled rock prism body are positioned between the upstream face impermeable layer and the upstream face inverted filter layer; the drainage piled rock prism body is positioned below the upstream face drainage layer; the dam lower inverted filter layer is positioned between the dam body and the dam lower drainage layer; the drainage pipe is positioned in the dam lower drainage layer; the inlet of the drainage pipe is connected with the seepage collection pipe; a gate valve is arranged at the outlet of the drainage pipe; the seepage collection pipe is positioned in the drainage piled rock prism body. The dam has the advantages that local material can be adopted for damming, the damming cost is low, the running is reliable, the maintenance is convenient, and the function is comprehensive.

The invention relates to the technical field of paper cups, in particular to a novel anti-seepage paper cup. The novel anti-seepage paper cup comprises a paper cup body, wherein the paper cup body comprises a first waterproof layer, a first heat insulation layer, a first reinforcing layer, a fan-shaped paper sheet, a second reinforcing layer, a second heat insulation layer, a second waterproof layer and a printing layer, wherein the first reinforcing layer and the second reinforcing layer are formed by a high molecular layer formed by bonding two layers of high molecular materials and fabric layers evenly arranged in the high molecular layer; each fabric layer is formed by weaving warp yarns and weft yarns; the warp yarns are cotton fibers; the weft yarns are blended by polylactic acid fiber yarns and the cotton fibers; the high molecular layer is a thermoplastic polyurethane resin film; and a 2-3 mm lamination reverse fold is reserved at the side surface bonding position of the fan-shaped paper sheet. The paper cup has the advantages of guaranteeing sanitation, and being excellent in water seepage prevention performance, good in heat insulation performance and high in strength.

The invention discloses a plastering mortar admixture. The admixture is mainly prepared from raw materials in percentage by weight as follows: 5%-20% of modified calcium lignosulphonate, 1%-5% of fibers, 20%-50% of bentonite, 30%-60% of fly ash and 10%-20% of an auxiliary material, wherein the auxiliary material is prepared from cellulose hydroxypropyl methyl ether hyprolose, polyvinyl alcohol, lauryl sodium sulfate, sodium gluconate and white sugar. The admixture produced with the technical scheme is low in cost, simple to use, green and environment-friendly and realizes waste recovery; besides, construction operability of mortar is improved, mortar cracking and hollowing of the mortar are greatly reduced and prevented, and mortar strength is improved.

The invention discloses a water storage type grass planting brick for municipal environmental protection and a laying method thereof, which belong to the technical field of grass planting bricks and laying thereof. Sand and gravel seepage layer and geotextile layer, through the interconnected annular seepage cavity, water storage cavity and grass planting hole inside the brick body, the water storage cavity is used to collect natural rainwater and slowly release natural rainwater in the grass planting hole Provide water and nutrients for the vegetation, and the high-strength water-retaining cones embedded in the corners of the grass-planting holes, on the one hand, play a role in retaining the water introduced into the grass-planting holes, and on the other hand, fill the planting soil in the grass-planting holes and Vegetation grass plays a fastening role, effectively avoiding the rapid loss of water in the grass planting hole, and setting up a semicircular water passage cavity and diversion hole connected to each other, when there is too much rainfall, it can conduct and evacuate natural rainwater as soon as possible , Excessive rainwater is not easy to stay on the brick surface.

The invention relates to an axial locking joint of a glass reinforced plastic pipeline. The axial locking joint comprises a bell mouth and a spigot and is characterized in that two O-shaped sealing rings are installed between the bell mouth and the spigot; a glue filling hole is formed on the bell mouth; and resin is filled in the glue filing hole to form a locking sealing ring. According to the invention, by utilizing a resin material which can be rapidly solidified as the locking sealing ring, rapid installation of the glass reinforced plastic pipeline can be realized; simultaneously, axial tension of the glass reinforced plastic pipeline can be born because of bonding strength among the resin, the bell mouth and the spigot; the leakage prevention role can be played; therefore, the axial locking joint has axial constraint; the leakage probability of the pipeline can be reduced; unnecessary thrust mounds can be omitted; and the construction cost and the working times of the pipeline can be reduced; and therefore, the glass reinforced plastic pipeline is applied to being installed in geological variable areas.

The invention provides a water-storing and seepage-proofing rubber board and a preparation method thereof. The water-storing and seepage-proofing rubber board provided by the invention comprises a water storage layer and a seepage-proofing layer. Butyl rubber is used as a supporting and connecting material of the water storage layer, cotton thread short fibers subjected to rubber dipping treatmentand water absorbent resin SAP are added, the cotton thread short fibers are disorderly dispersed in the water storage layer, a water transport channel communicating the water absorbent resin with theoutside world is formed, and the water-absorbing and water-storing functions of the water storage layer are enhanced. Butyl rubber is used as a seepage-proofing layer, carbon black and light calciumcarbonate are added, the tear strength and the tensile resistance are improved, and the rubber board has good water seepage-proofing performance. The water-storing and seepage-proofing rubber board isused for planting trees in deserts, and is buried under roots of the trees; in rainy seasons, a large amount of water can be absorbed and stored; in dry seasons, water of the water storage layer canbe supplied for root systems to absorb slowly through the cotton thread short fibers, the application scope of the rubber board is expanded, and guaranteeing is provided for the survival rate of greenvegetation in the deserts.

The invention discloses a construction method for a ground fissure formation tunnel deformation seam impervious structure, comprising the steps as follows: modified asphalt concrete and reinforced material are prepared as reinforced asphalt concrete flexible plate by a rolling method; the flexible plate is internally provided with resistance wires which are led out and used for expanding the deformation seam and the tunnel diameters at two sides so as to form a primary lining supporting wall rock body; the asphalt concrete flexible plate is arranged on the surface of the primary lining supporting wall rock body; two sides of the deformation seam are respectively poured by end lining with the end surface having two parallel ring-shaped trough; subsequently, the deformation seam is internally provided with reinforcing cage and poured by the asphalt concrete; the deformation seam is filled and sealed; two ends of the resistance wire is led into the tunnel by the deformation seam. The impervious structure constructed by the method of the invention utilizes the rheological property and electric heating of the asphalt concrete, prompts the rheological deformation of the asphalt concrete,and leads the surfaces of the reinforced asphalt concrete panel and the lining structure to generate the relative sliding, so as to adapt for the continuous relative staggering displacement of the adjacent lining structures.

The invention discloses a preparation process of a self-draining concrete block, which belongs to the technical field of the preparation process of concrete blocks. A hole forming device is arranged in the cavity of a pouring mold, and the concrete pouring material is introduced into the mold through the pouring port. After entering the cavity, the concrete pouring material covers the entire cavity and covers the end surface of the hole forming device. After demoulding, the obtained block body is separated from the cavity and the hole forming device, and the formed and hole forming The hole structure matching the hole forming device is beneficial to the drainage of the block body during use, and can quickly dredge a large amount of rainwater to a certain extent. The combination of tampering rods, after the concrete pouring material is poured, uses continuous and intermittent pneumatic control to realize the reciprocating expansion and contraction of multiple tampering rods, so as to vibrate the concrete pouring material and effectively improve the quality of concrete blocks.

The invention provides a water-storing and seepage-proofing rubber board and a preparation method thereof. The water-storing and seepage-proofing rubber board provided by the invention comprises a water storage layer and a seepage-proofing layer. Butyl rubber is used as a supporting and connecting material of the water storage layer, cotton thread short fibers subjected to rubber dipping treatmentand water absorbent resin SAP are added, the cotton thread short fibers are disorderly dispersed in the water storage layer, a water transport channel communicating the water absorbent resin with theoutside world is formed, and the water-absorbing and water-storing functions of the water storage layer are enhanced. Butyl rubber is used as a seepage-proofing layer, carbon black and light calciumcarbonate are added, the tear strength and the tensile resistance are improved, and the rubber board has good water seepage-proofing performance. The water-storing and seepage-proofing rubber board isused for planting trees in deserts, and is buried under roots of the trees; in rainy seasons, a large amount of water can be absorbed and stored; in dry seasons, water of the water storage layer canbe supplied for root systems to absorb slowly through the cotton thread short fibers, the application scope of the rubber board is expanded, and guaranteeing is provided for the survival rate of greenvegetation in the deserts.

The invention discloses a structure for controlling underground structure side wall cracks, comprising a concrete wall body internally provided with a structural reinforcing mesh, a steel barrel and baffles ; a deformation joint is longitudinally arranged at the concrete wall body; the steel barrel is provided with the deformation joint, the deformation joint is located in the steel barrel, the steel barrel is filled with concrete, the barrel walls on the left side and the right side of the steel barrel are connected with the concrete wall on two sides of the deformation joint to form a whole,the barrel wall on the front side and the rear side of the steel barrel extends out of the concrete wall, and the steel barrel is fixedly connected with the structural reinforcing mesh; and the baffles are fixedly arranged on the left side and the right side of the steel barrel respectively and are perpendicular to the deformation joint. According to the structure, a structural steel bar frame isfixedly connected with the steel barrel, the baffles are used for connecting concrete inside and outside the steel barrel, the steel barrel and the concrete are connected into a whole, and the overall strength and rigidity are improved. The overall safety of the structure is not damaged by insufficient strength or rigidity at the deformation joint position. Construction is simple and convenient,and implementation is convenient.

The invention belongs to the technical field of anti-seepage construction, and in particular relates to a flexible connecting and sealing bitumastic anti-seepage structure of a tunnel deformation joint and a constructing method, which can ensure the normal use of a subway tunnel under the action of fracture formation of the ground. In the technical scheme, the method comprises the following steps: laying a composite layer of modified asphalt anti-seepage plate, pouring reinforced concrete for lining, setting deformation joints, mounting flexible baffles in the deformation joints, utilizing glass fiber cloth to seal gaps of the baffles, and pouring bitumastics to fill gaps of the deformation joints. The anti-seepage structure constructed in the method has the anti-seepage performance of the composite layer of modified asphalt anti-seepage plate, the extension performance and the anti-seepage performance of the bitumastics, and the blocking function of the flexible baffles. Therefore, the anti-seepage structure can ensure the effective sealing of the joint and prevent the significant water leakage accident while fully adapting to the large-displacement slipping deformation in the positions with the deformation joints of the composite lining structure, and has high economic and social benefits.